I agree, I have gotten black seed oil and always get it from a source I know is giving me exactly what I expect.
And when it works you know it is good.
I have also had clients that have gotten some and told me it did nothing and find out it is some cheap oil with additives, we don't want something that contains black seed oil, you have to have pure black seed oil.
It has many benefits. Our clients are most interested in it benefits for cancer.